Add PDF password protection to your file to protect sensitive content. When you encrypt a PDF, only people with the password can view the file content.

Encrypt and protect PDF with a password to safeguard sensitive information. Secure your PDF files online, with ease and without registration.

You can control access to a document by implementing a password for it. Passwords are case-sensitive and can be a maximum of 15 characters long. Create a strong password, ideally one that you can …

Nov 5, 2025 · If you're using macOS or Windows 10 or 11 Pro, Enterprise, or Education Edition, you can use your computer's built-in encryption program to password-protect folders and files. If you have …

Nov 26, 2025 · Learn how to secure your Windows files and folders with password protection or encryption using third-party programs, ensuring data safety and privacy in steps.

Password protection is an access control technique that helps keep important data safe from hackers by ensuring it can only be accessed with the right credentials.

Dropbox makes it easy to password protect PDFs and other files without third-party software. Before you share a link to a PDF, Word doc, or other file or folder, simply set a password for it—so only the …

By adding a password to your PDF file, you can ensure that only authorized users can open it. You can also restrict the actions that can be taken on the PDF file, such as printing, copying, or editing.

Open the workbook that you want to change or remove the password for. On the Review tab, click Protect Sheet or Protect Workbook. Click Unprotect Sheet or Protect Workbook and enter the …